Write a balanced equation for the reaction between an aqueous solution of calcium nitrate being mixed with an aqueous solution of sodium phosphate Identify the precipitate.
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To write a balanced equation for this reaction, we first need to identify the formulas of the compounds involved and then determine the products that will be formed.
The formula for calcium nitrate is Ca(NO3)2, and the formula for sodium phosphate is Na3PO4. The balanced equation can be written as follows:
3Ca(NO3)2 + 2Na3PO4 → Ca3(PO4)2 + 6NaNO3
In this equation, three moles of calcium nitrate react with two moles of sodium phosphate to form one mole of calcium phosphate (Ca3(PO4)2) and six moles of sodium nitrate (NaNO3).
Next, to determine the precipitate, we consider the solubility rules. While calcium nitrate is a soluble compound, sodium phosphate is slightly soluble. According to the solubility rules, calcium phosphate (Ca3(PO4)2) is insoluble, meaning it will precipitate out of solution.
Therefore, the precipitate in this reaction is calcium phosphate (Ca3(PO4)2).